Question : DNA fragments show up as a series of different sized ______.
Logical Answer : Bands
Birds have hollow bones due to the fact thay need to be as light as possible for their wings to generate enough lift for them to fly
The correct option is C.
Roundworm belongs to the kingdom animalia and to the phylum nematoda. It has round, unsegmented, smooth and thin body which can grow to the maximum of four feet in length. It has a bilateral symmetry. A roundworm has no skeleton and it reproduces sexually.